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Lumbar Spine

Projections,positions,Area of interest, best seen criteria for Lumbar Spine

What is the area of interest for an AP Lumbar Spine? Open intervertebral disk spaces of T12-S1
What is the centering for a AP Lumbar spine? Center the midsagittal plane of pt's body to midline of the grid
What is the position of the hips, legs, knees for an AP projection of the lumbar spine? Flex pt's hips and knees enough to place the back in firm contact with the table to reduce lumbar lordosis
What is the direction of the CR for an AP projection of the lumbar spine? Perpendicular to the IR at the level of the iliac crest or lumbosacral L4?
What is the direction of IR for an AP Lumbar spine? 14x17 lengthwise, center of plate to CR at level of the iliac crest or L4
What is the SID for an AP projection of the Lumbar spine? 40-44"SID
What is the focal spot size for any projection of the lumbar spine? Large focal spot
What position is used to reduce patient dosage when imaging a lumbar spine? PA Lumbar spine, it also places the intervertebral disks parallel to the divergent beams
What is the area of interest for a Lateral projection of the lumbar spine? Intervertebral foramina of L1-L4, area of T12 to S1
What is the centering for a Lateral projection of lumbar? Center IR to level of iliac crest, center midcoronal plane of body to grid
What is the position of the patient for a Lateral projection of the lumbar spine? lateral recumbent, with hips and knees flexed or pt erect with arms raised
What is the respiration for an AP projection of the lumbar spine? Suspend respiration after full expiration
What do you do if the vertebral column is not elevated to a horizontal plane when the patient is an a lateral recumbent position of the lumbar spine? Angle the CR caudal so that it is perpendicular to long axis of the body. An angle of 5deg for average male, an 8deg for average female?
What is best positioning for a lateral lumbar spine? Place pt in lateral recumbent position with hips, knees flexed, place a radiolucent sponge under lower thorax, adjust the spine so that long axis is parallel to table
What is the respiration for a lateral projection of the lumbar spine? Suspend respiration after expiration
What is the SID for a Lateral projection of the lumbar spine? 40-44"SID
What is the direction of the CR for a Lateral projection of the lumbar spine? When a sponge is placed under the lower thoracic area, perpendicular through L3/L4 at level of iliac crest
What is the IR size direction of the IR for a Lateral projection of the lumbar spine? 14x17 lengthwise, center of plate to CR at level of iliac crest
What is the area of interest for a lateral L5-S1 lumbosacral junction? Open intervertebral disk space of the L5-S1 junction
what is the IR size and the direction for a L5-S1 projection of the lumbar spine? 8x10 lengthwise, center of plate to 1.5inch inferior to iliac crest and 2inch posterior to ASIS
What is the SID for a L5-S1 projection of the lumbar spine? 40-44"SID
What is the CR direction for the L5-S1 projection of the lumbar spine? Perpendicular to IR if spine is parallel to table, 5deg-8deg caudal if entire spine is not parallel, CR 1.5inch inferior to iliac crest and 2inch posterior to ASIS
What is the positioning for a AP Axial L5-S1 Ferguson method for the lumbosacral region? Pt supine with knees flexed on support, pts arms flexed on top of chest, shoulders on same plane, ensure pelvis is not rotated
What is the SID for an AP Axial L5-S1 Ferguson method for the lumbosacral region? 40"SID
What is the direction of the CR for an AP Axial L5-S1 Ferguson method for the lumbosacral region? Average 30degrees for males and 35degrees for females, enters at level of ASIS directed to midline 2 inches above pubic symphysis
What is the respiration for an AP Axial L5-S1 Ferguson method for the lumbosacral region? Suspend respiration
What is the area of interest for an Ap Axial L5-S1 Ferguson method for the lumbosacral region? Open intervertebral disk space of L5-S1, both sacroiliac joints, proximal sacrum
What position is best used for viewing the Zygapopyseal joints of the lumbar spine? Obliques - (AP-SIDE DOWN) (PA SIDE UP)
What position is best used for viewing the Open intervertebral disk spaces of T12-S1? AP
What position is best used for viewing the intervertebral foramina of the lumbar spine? Lateral
What position is best used for viewing the open intervertebral disk space of the lumbosacral junction? Lateral spot L5-S1
What is the degree of body rotation for an oblique projection of the lumbar spine? 45degree
What is the area of interest for an AP RPO/LPO oblique projection of the Lumbar spine? Side up or Side down? SIDE DOWN - area of interest
What is the area of interest for an PA RAO/LAO oblique projection of the Lumbar spine? Side up or Side down? SIDE UP - area of interest
What is the body rotation of an oblique projection of a lumbar spine? 45degree rotation
What is the patient positioning for a AP oblique projection of the lumbar spine? Start AP supine position and have pt turn approx 45deg toward affected side, adjust the pts body so that long axis of pt is parallel with long axis of table
What is the direction of the CR for an AP Oblique projection of the lumbar spine? perpendicular to enter 2inch medial to elevated ASIS and 1.5inches above iliac crest, center CR to IR
What is the respiration for a Oblique projection of the lumbar spine? Suspend respiration
What joints are area of interest for an AP RPO lumbar spine? Right zygapophyseal joints
What joints are area of interest for an AP LPO lumbar spine? Left zygapopyhyseal joints
What is the patient positioning for an PA oblique projection of the lumbar spine? Start PA prone position and have PT turn 45deg away from affected side, adjust the pts so body so that long axis of pts body is parallel with long axis of the table
Where is the centering for an PA oblique projection of the lumbar spine? L3 to midline of the grid
What is the direction of the CR for PA oblique projection of the lumbar spine? Perpendicular to enter L3 1-1.5 inches above iliac crest
What is the respiration for an Oblique projection or the lumbar spine? Suspend respiration at the end of expiration
What joints are area of interest for an PA LAO lumbar spine? Right zygapophyseal joints
What joints are area of interest for an PA RAO lumbar spine? Left zygapophyseal joints
What type of curve does the lumbar region have? Lordotic curve
What type of curve does the pelvic/sacral region have? Kyphotic curve
How many lumbar spine are there on a normal patient? 5
How many fused segments are there on a sacrum? 5
What is the name of the "Scotty Dog" ear? Superior Articular process
What is the name of the "Scotty Dog" nose? Transverse process
What is the name of the "Scotty Dog" eye? Pedicle
What is the name of the "Scotty Dog" neck? Pars Intercularis
What is the name of the "Scotty Dog" leg? Inferior Articular process
What is the name of the joint that is behind the "Scotty Dog" ear? Zygapophyseal joint
What is the name of the "Scotty Dog" body? Lamina
Created by: kemu15
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